yarn create & npx & npm init

https://www.npmtrends.com/npm-vs-npx-vs-yarn

demo

https://www.npmjs.com/package/create-react-app

$ yarn create react-app

$ npx create-react-app

$ npm init react-app

https://create-react-app.dev/docs/getting-started/#creating-an-app

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yarn create

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css & dark theme

https://create-react-app.dev/docs/getting-started/#creating-an-app

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